It was located in the Roman Catholic Archdiocese of Boston.

Saint Clement High School was established in 1925 by the Sisters of St. Joseph.

[3] In 1984, the Anchormen advanced all the way to the MA State Eastern Mass Division 5 Super Bowl Championship; winning over Blue Hills (22 - 6) at BU Nickerson Field.

In 2013, the Football team won the Catholic Central Small championship for the second time and advanced all the way to the State Semi-Finals in the state playoffs, where they lost 40-20 to Cohasset for the right to advance to the state championship.

In 2017, it was announced the school was to shut down on June 9 of that year, citing low enrollment.